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Neuron Types and Functions

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Questions and Answers

What is the characteristic of a pseudounipolar neuron?

It has no axons but multiple dendrites

It has one process that divides into two long axonal branches (correct)

It has only one dendrite and multiple axons

It has multiple dendrites and axons

What is the main function of Microvilli in Ependymal cells?

To facilitate the movement of CSF

To provide structural support to CNS

To produce myelin

To absorb substances (correct)

What type of fibers convey sensations of pain, temperature, touch, and pressure from the body surface?

Motor neurons

Somatic afferent fibers (correct)

Efferent fibers

Visceral afferent fibers

Which type of Astrocytes have few, long processes and are found in White matter?

Fibrous Astrocytes Signup and view all the answers

What is the role of the plasma membrane in dendrites of motor neurons?

It is specialized for impulse generation Signup and view all the answers

What is the structure of the axon of a motor neuron?

It has one terminal and is responsible for impulse conduction Signup and view all the answers

What is the primary function of Oligodendrocytes?

To produce myelin Signup and view all the answers

What is the role of Microglia in the Central Nervous System?

To act as specialized phagocytes Signup and view all the answers

Where are the cell bodies of sensory neurons located?

In the dorsal root ganglia and cranial nerve ganglia Signup and view all the answers

What is the most numerous type of glial cell in the Central Nervous System?

Astrocytes Signup and view all the answers

What is the role of Astrocytes in the Blood-brain barrier?

To induce vascular endothelial cells to form a seal Signup and view all the answers

What is the main function of dendrites in a neuron?

To receive and integrate signals from other neurons Signup and view all the answers

What is the main characteristic of the neocortex?

It comprises about 90% of the total area of the cerebral cortex Signup and view all the answers

What is the function of the axon in a neuron?

To transmit the signal to other neurons or to muscles or glands Signup and view all the answers

What is the archicortex?

The oldest part of the cerebral cortex Signup and view all the answers

What is the function of synapses in the cerebral cortex?

To transmit the signal from one neuron to another Signup and view all the answers

What is the cerebral cortex composed of?

Nerve cell bodies, axons, dendrites, and central glial cells Signup and view all the answers